Ice-cream freezer.



No. 651,732. 7 Patented lune 12, |900. A. wEBBEn.

- ICE CREAM FREEZER.

(Application led Dec. 3, 1898.)

(No Model.) 2 sheets-sheet l.

Lnnun" Nn. 65|,732 Patented lune I2, |900..

A. WEBBER.

ICE CREAM FREEZEB.

(Application led Dec. 3, 1898.) (No Model.) 2 sheets-Sheet 2.

W m @Mw l Tn: Nouns PETERS co, Puoaufno.. wAsHmsTou, u. c.

UNITED STATES PATENT ,OFFICE ALEXANDER IVEBBER, OF IVINTHROP, MASSACHUSETTS, ASSIGNOR OF ONE- I-IALF TO GEORGE A. SEAVER, OF TOWNSEND, MASSACHUSETTS.

ICE-CREAM FREEZ-ER.

SPECIFICATION forming part of Letters Patent No. 651,732, dated June 12, 1900. Application filed December 3, 1898. Serial No. 698,161. (No model.)

To @ZZ whom, t may concern:

Be it known that I, ALEXANDER WEBBER,

of Winthrop, county of Suffolk, State of Masv sachusetts, have invented an Improvement in Ice-Cream Freezers, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

ro This invention has for its object to produce an ice-cream freezer capable of freezing cream quickly and easily, the freezer being so constructed that it may be readily manipulated by an unskilled person.

Figure l represents in vertical section an` ice-cream freezer embodying my invention. Fig. 2 is a detail showing the manner of connectin g the power driving-shaft with the stirrer. Fig. 3 is a sectional detail below the zo dotted line Fig. 1. Fig. 4 is a detail showing one manner of applying the top to the outside casing. Fig. 5 shows the top A3 in plan View, and Fig. 6 shows the pivot-block in plan view. In the production of my improved freezer I take a casing A, preferably composed of wood in the form of staves, held together by suitable hoops A', said, casing having a bottom A2 and a top A3, the top having, as shown, 3o suitable ears A4, Fig. 4, which may be slotted to embrace stud-screws A5, inserted in the upper hoop of the casing. Inside this easing at its center I erect a pivot-block B, (shown separately in Fig. 6,) said block having, as rep- 3 5 resented, suitable notches b. This block, as well as the bottom A2, receives and supports centrally a standard or pivot-rod b', having, preferably, as shown, a cross-pin b2 near its upper end. rlhe vessel C, to contain the 4o cream to be frozen, is composed of a doublewalled cylinder, one of the walls being marked c and the other c', said Walls being connected by a bottom c2. The vessel so constructed has, it will be noticed, a hollow open cylindrical center portion, and at the lower end of this hollow circular portion the vessel is provided with a suitable projection, as c3, one or more, which enter the slots or notches b of the pivot-block, so that said vessel when applied 5o within the casing will remain stationary. It

will be applied after the milk or cream to be frozen has been put into the vessel. The inner circular wall c' terminates at a point below the outer circular wall c. To protect the milk or cream in this vessel, I apply to it a cover D, said cover having, preferably, an outer iiange d and an inner concentric flange d', and preferably the inner flange d will be longer than the outer flange. These two anges fit substantially snugly lthe double 6o walls. Ice Will be packed in the casing about the outer wall c, and ice will also be packed within the hollow open center of the vessel and within its inner wall c', and it will be supposed at such time that the cover will be in position on the vessel.

The top has applied to it by screws e suitable blocks e' c2, said blocks being so shaped as to receive, say, two of the feet'e3 of a stand e4, the block c2 receivinga foot @4X of the said 7o stand, the feet e3 being kept seated in the blocks c' and the foot e in the block e2 by means of a suitable adjusting device e5, herein shown as a screw. The stand e4 receives a vertical shaft e6, having at its upper end a bevel-pinion e7, which is engaged by a bevelpinion es on a short shaft e9, having secured to it, preferably in an adjustable manner, as by a lock-nut elo, a handle cl2, the rotation of said handle rotating the shaft c6. The lower 8o end of the shaft c6 is slotted, as shown in Fig. 2, so that it may embrace a pin f, mounted to slide up and down vertically in the slots f of a cylindrical portion f2 of the scraperhead or carrier, said head receiving a spring to support said pin and also having two arms f4, suitably shaped to receive the reduced upper ends g g' of two Scrapers g2 and g3. The scraper g2 is so located with relation to the inner side of the inner wall c as to scrape 9o from it the cream being congealed thereon, while the scraper g3 is so located as to scrape and remove from the inner side of' the outer wall c the cream congealing thereon. The Scrapers are held up in the sockets of the scraper-head by means of suitable pins 2, extended through the necks g and g' of the Scrapers above a portion of the arms of the scraper-head. The scraper g2 acts to force the cream being frozen on the inner wall c of loo the vessel toward the centerportio-nvof said vesselyandlthe Scrapers g8 act to scrape the frozen cream from the inner side of the outer wall, forcing it toward the inner portion of` said vessel, such action enabling the frozen cream to be readily displaced and forced .tof

ward the central part of the vessel from both of its sides, letting the unfrozen cream come immediately in contact with the cold walls of the vessel, thus greatly increasing the speed at which the cream may be frozen. The

sleeve f2 of the scraper.- head is bored, as V shown, through. to Iit over theupper end Vof the pivot b', the lower end of said sleeve resting on the pin b2 in said pivot, said pin being so located as to stop the arms of the scraper at a point where theywill substantially meet .the upper end of the inner wall c of the vessel, for it will be understood that the scraperthe staxof the-scraper snugly, and thereafter the cover D is moved in unison in a circular path Vwithfthe scraper, and it will benoticed that vthe bottom'of ythe cover D is so located with relation to the upper outer wall of the vesselj that the cover does not rest von the saidvessel, but is carried by the scraper-head.

As stated, I prefer to use my ice-creamv freezer inthe following manner: I place the cream to be frozen in the vessel, then apply the vessel in the casing, put on the cover, and pack the vessel inside and vout withice,

letting the cream stand until thoroughly chilled and preferably until the cream is congealed on the inside of the vertical' walls of uthe vessel. I then remove the cover, put the scraper-head inposition on the pivot B', letting the Scrapers enter the cream inthe vessel, and thereafter I apply the cover andv putf `on the top A3, vletting the shaft e6 enter the Aopen upper end of the sleeve, so as to engage the pin f. In this condition the useriof lthe freezer may engage the. handle and turny the stirrer and its cover, the vessel remain-v ing stationary.

I find that with this apparatus I can freezer, cream evenly and smoothly 'in a veryfeW-l moments, and by reason of the cover and its:

longriiangesthere is no-chance for;

Having fully described my invention, whatA I claim, and desire to secure by Letters Patent, is-

l. In an ice-cream freezer, a casing, a stationary vessel open at its center and having v'an inner and outer wall against both of which the ice may be packed, a cover for said vessel having downturned flanges to overlap the walls thereof, and a scraping member mounted for rotation and locatedto engage and rotate said cover.

2. In an ice-creaml freezer, a casing, a vessel inclosed by said casing, and havingtwo concentric walls each of which may receive against it ice, a pivot-pin locatedv centrally with relation to the open center of said vessel, a stirrer-head mounted upon saidv pivot and provided with stirrers, a cover for said vessel movable with the stirrer-head, a 'iixed block-disposedvwithin the area circumscribed `by the inner wall of the vesseland having a notch, 'a fixed Vprojection upon the inner wall of the vessel fitted in said notch, and means for rotating said stirrer-head.V

3. In an ice-cream freezer a stationary vessel having an open center andpresenting two concentric'walls, a casing for said vessel, a stirrer-head having means for stirring the 'cream or milk placed l-in said vessel, a cover for said vessel provided with two downturned anges overlappingthe concentric walls, and the inner flange lbeing'fnotched to receive said stirrer-head, and means for rotating said stirrer-head. i i

4. In an ice-cream freezer, astationary vessel'having an open centerand presenting two concentric walls, an outer casinghaving a detachable top, a stand mounted on said top and providedwith a vertical shaftslotted at one yend, means to rot-atesaidshaf-t, a stirrernhead having-a sleeve extended through said top and slotted and `provided with a spring and a-pin, said stirrer-head having two stirrers each adapted to scrapeonly one wall of the vessel, substantially asv described.

InV testimony whereof I have signed my nameto this specification in the presence of two subscribing witnesses.

v ALEXANDER WEBBER.

, Witnesses: Y

' GEORGE W. GREGORY,

EMMA` J. BENNETT. 

